市场择时理论的中国适用性--基于1998～2003年上市公司的实证分析

自2002年Baker和Murgler明确提出市场择时理论以来,传统资本结构理论的解释力度受到一定程度的质疑,国外学者围绕这一新兴的资本结构理论展开激烈的争论.文章运用1998年1月1日～2003年12月31日间中国沪深两市IPO公司财务数据试图第一次较为全面地检验市场择时理论在中国的适用性.实证结果表明在样本期内中国上市公司确实存在着股票融资和债务融资的市场择时行为;债务融资的市场择时行为并不显著影响中国上市公司的资本结构,而股票融资的市场择时行为短期内显著影响公司的资本结构;股票融资的市场择时行为不具有持久影响资本结构的效应,总的说来,市场择时理论并不适用于中国的上市公司.     

机构投资者"分心"与公司杠杆操纵

本文以机构投资者在其投资组合中注意力分配差异而产生的不同“分心”程度作为识别监督外在变化的手段,验证了其对企业杠杆操纵的重要影响。研究发现,上市公司会趁机构投资者“分心”而监督弱化时实施更多杠杆操纵行为,经稳健性检验后该结论依然成立。影响机制分析发现,机构投资者“分心”通过弱化其监督治理效应、降低公司股价信息含量进一步加剧企业杠杆操纵现象,使得企业得以隐藏真实杠杆水平,误导债权人以更低的资本成本借出资金,但也为企业的未来埋下隐患,致使企业潜在债务违约风险与财务风险增大。此外,在机构投资者“分心”加剧企业杠杆操纵的关系中,“去杠杆”政策实施和去杠杆压力发挥了正向调节作用。本文丰富了机构投资者“分心”经济后果研究,也为监管部门强化对企业监管提供了重要启示。     

基于现金流量的中国上市公司扩张性融资偏好研究——来自我国A股市场的经验证据

本文以资本结构理论为基础,运用实证研究方法,对我国1998-2004年具有扩张行为的上市公司的资金来源进行了探索性研究,旨在通过实证研究总结我国具有扩张行为的上市公司在获取资金方面存在的一些规律。实证研究结果表明：我国具有扩张行为的上市公司在筹集资金时,首先考虑债权融资。这有利于给上市公司带来财务杠杆效用、给股东创造更多的价值,同时也意味着我国上市公司经营者有意识地运用负债来经营,其融资行为是理性的。同时,我国具有扩张行为的上市公司在融资结构方面也存在一定的局限性,主要表现为内部融资所占比例较低和债权融资结构不合理。     

Debt and Currency Crises—Complements or Substitutes?*

Debt and currency crises are closely interlinked through the government's intertemporal budget constraint. The default tax and the inflation/devaluation tax can be considered as alternative means of financing. Our empirical analysis finds that high‐debt countries choose default rather than inflation/devaluation for financing, while a high money stock reduces the probability of debt crises. Further, we find strong evidence that debt and currency crises share common fundamental causes. Finally, there is a Granger causality running from debt crises to currency crises, but only weakly in the other direction.     

中国上市公司融资偏好问题的重新审视

基于对中国上市公司股本融资偏好问题的重新审视,我们发现:(1)如果将短期债务考虑在内并剔除首次公开募股的影响,股本融资偏好就不复存在;(2)在企业债务比率的调整过程中,融资缺口所起的作用超过了传统的企业特征因素,这意味着顺序偏好理论能在一定程度上解释企业的融资行为;(3)股票市场状况和政府管制政策会对企业外部融资的构成产生一定的影响。以上经验证据表明,中国上市公司的融资行为并不像原先所想的那样独特,主流的资本结构理论对企业的债务政策具有相当的解释能力。     

Financing government investment and its implications for public capital: A small open economy perspective

Expenditure reductions played a key role in many small open economies during fiscal consolidation, with large declines in public investment. This led to a reduction in public capital stock and affected the competitiveness of these economies. After the sovereign debt crisis, the governments that consider increasing investment to replenish the public capital stock have limited fiscal space and have to avoid external imbalances. We show that using budget-neutral investment spending can generate long-term benefits of higher public capital stock while at the same time limiting negative consequences for the public finances and the trade balance. The best way of financing government investment, which preserves fiscal and trade balances, and increases welfare, is by reducing other government spending. The second-best is financing investment with value-added tax. Financing with debt worsens fiscal and trade balances, while using distortionary labour taxes reduces labour supply, increases wage costs and worsens the trade deficit in the short run.     

我国上市公司债务融资效应研究

为了研究债务融资对公司绩效的影响,首先运用主成分分析法构建了债务融资效应的主成分预测模型,然后利用该模型对我国834家制造业上市公司2003~2004年财务数据进行了实证研究。结果显示在一定范围内我国上市公司债务融资效应的综合得分F与债务存量及增量在一定范围内成正比关系,表明上市公司利用债务融资有利于公司绩效的改善。     

Capital control, debt financing and innovative activity

The present paper discusses the effects of dispersed versus concentrated capital ownership on investment into innovative activity. While the market for equity capital might exert insufficient control on top managements’ behavior, this weakness may be mitigated by a suitable degree of debt financing. We report the results of an empirical study on the determinants of innovative activity measured by patent applications. Using a large sample of German manufacturing firms, we find that companies with widely held capital stock are more active in innovation, i.e. weakly controlled managers show a higher innovation propensity. However, the higher the leverage the more disciplined the managers behave.     

Government debt and private leverage: An extension of the Miller theorem

This paper shows how government financing decisions can influence the corporate decision to use debt or equity finance. In particular, it is shown that an increase in the stock of taxable government debt reduces the equilibrium quantity of corporate debt, and that an increase in the stock of tax-free government debt reduces the equilibrium quantity of corporate equity. The effects of inflation rate and tax rate changes are also considered.     

不同来源金融资本对企业研发投入的影响研究

以中小板上市公司为样本,就不同来源金融资本对企业研发投入的影响进行了理论分析与实证检验。结果发现：①内源融资与企业研发投入正相关,高成长性企业表现尤为显著;②政府补助与企业研发投入正相关,资产负债率与企业研发投入负相关,且资产负债率负向调节政府补助与企业研发投入的正相关关系。企业应适度控制债权融资水平,提高企业研发投入动机,并有效发挥政府补助对研发投入的积极作用;③风险投资、外商直接投资与机构投资者对企业研发投入的影响不显著。     

市场时机效应难以对资本结构产生持久性影响的原因——基于债务成本视角的实证研究

提出投资者情绪影响资本结构选择的一条渠道,即价格偏离会造成企业债权人预期变化,进而影响债务成本、融资约束,最终改变经理人的融资决策。应用我国上市公司1999—2008年的财务数据进行横截面实证检验。结果表明:市场情绪在很大程度影响上市公司的债务融资成本;在投资者非理性假设下,考虑市场情绪对债务成本的影响并结合市场时机理论才能解释上市公司的长期资本结构选择的经验数据。     

Government expenditure,external and domestic public debt,and economic growth

This paper analyzes the relationship between government expenditure, tax on returns to assets, public debt, and growth in an endogenous growth model. Public debt is composed of two components, domestic debt and external debt. We show conditions for existence, uniqueness, and multiplicity of the steady states. More precisely, existence of steady state requires a sufficiently high productivity and a sufficiently low tax on returns to assets. We also provide the effects of an increase in the tax rate on returns to assets on the steady state. In particular, the relation between public spending and the tax rate has a bell shape. Domestic debt unambiguously increases with tax whereas external debt displays an inverted U‐shaped curve. A high tax rate leads to a reallocation of public debt in favor of domestic debt (to the detriment of external debt). The effect of taxation on consumption (and production) also displays a nonlinear pattern when the output elasticity of capital is lower than unity (the effect is monotonously increasing if this elasticity is unity). We also derive the conditions under which a tax increase can boost or reduce the balanced growth rate.     

中国上市公司股权融资偏好解析--偏好股权融资就是缘于融资成本低吗?

我国上市公司存在较为强烈的股权融资偏好 ,对此 ,理论界一般将其直接动因归结为股权融资成本偏低。然而 ,本文分析表明 ,融资成本因素并不能完全解释我国上市公司的股权融资偏好行为。为此 ,我们进一步采用Logit模型 ,从融资成本、破产风险、负债能力约束、代理成本和控制权等因素多角度考察了我国上市公司融资行为的影响因素。研究发现 ,企业资本规模和自由现金流越低 ,净资产收益率和控股股东持股比例越高 ,则企业越有可能选择股权融资方式。但本文研究未发现企业破产风险和成长性指标对企业融资决策有影响。同时 ,本文研究还发现 ,股权融资成本与上市公司股权融资概率正相关。本文最后基于上述发现提出了若干政策建议。     

上市公司债务融资、公司治理与市场价值

本文就上市公司的债务融资与公司治理、公司市场价值的关系进行了理论分析和实证检验 ,发现我国上市公司债务融资占总资产的比重不大 ;总体上债务融资具有加强公司治理、增加公司市场价值的作用 ,但是对于少数资产负债率非常高的公司 ,这种作用并不显著 ;市场对公司发行债券有积极的反应 ;同时债务融资起到了传递公司业绩的信号作用。     

银行负债、制度环境与控股股东代理成本

债权人对控股股东的制衡力量在学术界一直鲜有人关注。文章就企业的银行负债对控股股东代理成本的影响进行了理论分析与实证检验,在此基础上进一步检验了产权性质对二者关系的调节作用,以及内部治理机制和法律环境与银行负债的交互作用。利用中国A股房地产上市公司2003-2011年的面板数据,研究表明:企业的银行负债显著降低了控股股东代理成本;产权性质对二者关系具有调节作用,公司内部治理机制、法律环境与银行负债存在交互作用。文章所得出的研究结论既丰富了委托代理、资本结构等相关理论,又对银行与国有企业产权改革以及企业融资决策具有较强启示意义。     

风险投资对上市公司投融资行为影响的实证研究

本文研究风险投资机构对上市公司投融资行为的影响机制和作用效果,结果发现:风险投资的加入不仅可以抑制公司对自由现金流的过度投资,而且可以增加公司的短期有息债务融资和外部权益融资,并在一定程度上缓解因现金流短缺所导致的投资不足问题。进一步研究还发现不同特征的风险投资机构均可起到抑制自由现金流过度投资的作用,但只有高持股比例、高声誉、联合投资或非国有背景的风险投资机构才能够显著地改善外部融资环境,缓解现金短缺公司的投资不足问题。综合本文研究结果,作者认为企业上市后仍然可以利用风险投资机构的监督职能、声誉资源和融资关系网络来解决代理问题和信息不对称问题,进而促进企业投融资行为的规范化和理性化。     

Internal debt and welfare

This paper analyzes how multinational firms' internal debt financing affects high-tax countries. It uses a dynamic small open economy model and takes into account that internal debt impacts both the multinational firms' investment decisions and the government's tax policy. The government has incentives to redistribute income from firm owners to workers. If the government's redistributive motive is not too strong, internal debt reduces welfare in the short term by decreasing tax revenues. However, debt financing stimulates capital accumulation and exerts a positive long-term welfare impact.     

Why is the corporate tax rate lower than the personal tax rate?: The role of new firms

In many OECD countries, statutory corporate tax rates are lower than personal income tax rates. This tax rate difference is often particularly large for small firms. The present paper argues that a reduction of the corporate tax rate below the personal tax rate is an optimal tax policy if there are problems of asymmetric information between investors and firms in the capital market. The reduction of the corporate tax rate below the personal tax rate encourages equity financing and thus mitigates the excessive use of debt financing induced by asymmetric information. Our main theoretical result stands in marked contrast to the traditional view of corporate taxation and corporate finance theory, according to which there is a tax disadvantage to equity financing. More recent empirical evidence on this issue, however, is in line with our result.     

集团背景下科技企业债务融资对创新投入的影响

选取深沪上市集团中高科技企业数据,实证检验集团背景下债务融资是否具有促进企业创新投入的“积极投资假说”效应;在不同产权性质与组织结构下,验证了集团内部资本市场对“挑选胜者”效应的中介作用;最后,实证检验了集团内部资本市场在发挥关联担保效应中的调节作用。该研究结论丰富了集团背景下债务融资与创新投入关系的研究。     

国有企业的债务问题研究*

本文基于1995—2014年间A股制造业上市公司的样本数据进行实证研究,回归结果表明所有制因素对公司资本结构的选择没有显著影响,即便把资本结构区分为长期结构和短期结构亦是如此。公司的总资产收益率、有形资产比率、成长性、公司规模以及实际税率对上市公司资本结构具有显著影响,其中最主要的两个因素是公司的总资产收益率和公司规模。这说明虽然从总量数据上看国企负债的确构成了宏观债务的主体,但就制造业来说国企的债务水平和其经济特征是相匹配的,规模和总资产收益率足以解释这种高债务水平,国企过度负债说至少对制造业国有企业来说并不成立。国企债务风险可能来自平台类国企,相关的政策应该针对这类企业来设计。